Having got the previous issues ironed out I set about calibrating the 5065A. This all went well and I got the drift down so I couldn't see it move over a few hours.
The next step is to see how it performs over a longer time base. So I come back a day or two later and find it is 50ns out. So I plugged the 1PPS from my reference into the back and pressed the "synchronise" button and it is still 50ns out. So I adjusted the sub-microsecond trimmer to bring it back in line. Next day it is out again. Re-synchronising made no difference. Am I right to assume there might be a problem in the delay circuit? Anyone seen this before? (I haven't looked at the book yet - am just about to...) Regards, Jim Palfreyman _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
